Crane.



PATENTED APR. 14, 1903.

A. L. @L o. ANDERSON.

CRANE.

APPLIOATION FILED MAY 17. 1902.

4 SHEETS-SHEET 1.

H0 MODEL.

Mizeuaew N0 MODEL.

' PATENTED APR. 14,1903.

A. L. s.; o. ANDERSON. v

CRANE.

APPLICATION FILED MAY 1'7, 1902.

4 SHEETS-SHEET 2.

s s E No. 725,812. l

x I PATBNTED APR. 14, 1903. A. L. &, o. ANDERSON.

CRANE.

APYLIOATION FILED MAY 17. 1902.

4 SHEETS-SHEET 3.

N0 MODEL.

W W D Y Eli/enfans?- Jdrew/ afi-demon ab n ader on PATENTED APR. 14, 1903. A. L. & ANDERSON.

CRANE.

APPLIOATION FILED MAY 17, 1902.

4 SHEETS-SHEET 4.

N0 MODEL.

l in:

TIIII IlIlIliIINAII\Il1lillillllIlllilllllllllllllllllllllllll companying drawings, and to the letters 'of of a crane embodying the improvements clon-r stituting our invention.r Fig. la is a trans-` verse section taken On line l 1a ofy Fig. l.A Fig. 2 is a top plan view of the crane with' UNITED .STATES PATENT OFFICE. t

ANDREW L. ANDERSON AND OSCAR ANDERSON, OF OIIIOAGO, ILLINOIS.

,oRANE.

SPECIFICATION formng'part of Ina-tters` Patent No. 725,312, dated April 14, 190B.

y Appiiastn filed May `17, 19o2. Serin No. 107,733. (No model.)

i To a/ZZ whom it may concern;

Beit known that we, ANDREW L. ANDERSONl and OSCAR ANDERSON, of Chicago, in the. county of Cook and State of Illinois, have in-` vented certain new and useful-Improvements in Cranes; and we do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the acreference ymarked thereon, which form a part of this specification. Y

This invention relates to improvements in cranes and is herein shown as more specifically adapted for depositing the flask'on a saud-A moldingv machine andremoving the :finished mold therefrom. y p.

The invention consists in the matters hereinafter set forth, and more particularly pointed in the appended claims. y

In the drawings, Figure lis a side elevation parts broken away and parts shown in section. Fig. 3 is a side elevation, partiallyin section, of the lower part of the crane. Fig. 4 is a vertical section taken on lineli 4: of Fig. 2.1 Fig. 5 is a transverse section taken on line 5 5 of Fig. 4. L j

As shown in the drawings, A designatesthe ybase-plate of the crane,`adapted to be bolted to a suitable foundation, and A' a vertical standard rising from said base-plate. Bolted to said base-plate are twin vertical cylinders B B, provided with pistons B B', the pistonrods B2 of which are joined atytheir upper e'ndsby a cross-head B3, which is provided with a central opening through which'lthe standard A extends, said cross-head sliding vertically on said standard. l The connectingweb B? between said cylinders is provided with an elongated passage throughwhich the standard A extends. Clamped on the stand` fin Fig. 5, which'communicate with a common pipe b', and'said pipeb is provided with a three-way valve b2. The operating-arm b3 of Vsaid valveV is connected by means of a link B4v 'with a short rigid arm of a lever B5, which lever is attached to a rock-shaft B6, which ,has bearing in a lug or projection B7 on the cylinders Attached to said rock-shaft Bi is a short arm BS, which is attached `by means of a linkl'b4l to a companion lever B9, located on the side-of the cylinders remote from the leverB5 and attached to arock-shaft B10, which has bearing in a lugor projection B11 on the cylinders. l v Supported on the cross-head B3, with the standard A'as a central bearing, is a revolving crane-head C, consisting of a central hub or body provided with-radial arms or brackets C', as shown most clearly in Fig. 2.v Said 'arms are provided at=their ends Withbearings o, in which arevmounted transverse rotative shafts C2 C3. Said shafts are provided at their Ci designates :bearing-brackets which are 4attached to the flanges of thehead C at the Vopposite sides of said head, and in said brackets is supported a transverse shaft c', on,

which are rotatively mounted grooved pul- 'leys C7, theaXes of which are located in the "horizontal plane of the axes of the pulleysC4.

- 'D designatesa generally rectangular carriage orltraveling frame having side members D D', a `transverseend memberDz, and afcurved'front member D fliaving forwardlydirected crane-arms D4, which, as shown in Fig. 2, are provided at their outer ends with loo hooks d, adapted to engage the trunnions of a flask or mold. The said frame travels on the lower grooved rollers C4 C2, the lower margins of the members D of said frame engaging said rollers, and the upper grooved rollers C5 engage the upper margins of said side members to hold said traveling carriage horizontally balanced. The said crane-head and traveling frame are adapted to be raised and lowered by admitting an expansible motive fluid into the lower ends `of the cylinders B through the pipes b, and the motive fluid is exhausted through said pipes to permit the crane-head and the stem A' to be lowered. After so raising the crane-head and frame to bring the crane-arms D4 to the proper height to engage the part to he lifted the traveling carriage and said crane-arms are advanced toward the part to be lifted and are also at the proper time retracted by means constructed as follows:

E E designate horizontal cylinders supported on the head C and located one on each side of the traveling carriage. As herein shown, the cylinders are supported on twopart sleeve-bearings E' E. which are attached to the flanged margins of one of the parts constituting the head C. Said cylinders are provided with pistons E2, as shown in Fig.\3, which are provided with piston-rods E3,which pistonrods are connected at their outer ends with lugs d' on the front curved members D8 of the traveling frame. Said piston-rods eX- tend through suitable gland-packings at the forward ends of the cylinders, as shown in Fig. 3.

E4 E designate inlet and exhaust pipes, one associated with each cylinder, and each of said pipes is connected at its opposite ends with the opposite ends of its cylinder, as

shown in Fig. 3. Said pipes E4 are provided with four-way valves e, which are connected on one side with the opposite ends of supplypipes e e', which latter are joined to a common supply-pipe e2. The valves are connected at their other sides with exhaust-pipes e3 e3, which communicate with a common exhaust-pipe e4, as shown in Fig. 2. The fourway valves c control the admission and eX- haust of a motive fluid, such as steam or cornpressed air, which is admitted and exhausted at either end of each cylinder by the following mechanism.

F designates a rock-shaft, which extends transverselyacross and above the main frame and is journaled between its ends in bearings ff on the outerendsofa bracket F', attached to the head C, in the manner clearly shown in Fig. 2. Depending from said shaft F are two rockarms F2, which are connected at their lower ends through the medium of links F3 with the arms e5 of the valves e, as most clearly shown in Fig.2, said links being loosely connected at their opposite ends with the arms F2 and e5. The shaft F is provided at each'end, outside of the traveling carriage, with depending operating-levers F, whereby the valves may be opened and closed from either side of the crane.

The movement ofthe projecting armD"l of` the carriage or traveling frame toward the head C is checked by a butting device consisting of a plunger G, adapted for contact with the member D3 of the carriage or movable frame D when said carriage is in its rearmost position. Said plunger is mounted in a frame G', which is attached to the adjacent arms C of the head C, in the manner shown in Fig. 2, and the plunger is held in its forwardmost position by means of a spiral spring g, surrounding the reduced rear Vend of the same and interposed between a shoulder g on the plunger and a bracket G2, attached to the frame G. The inner end of said plunger is screw-threaded, and one or more nuts g2 are attached thereto, which constitute a shoulder to prevent the detachment of the plunger from the frame bythe action of the spring g.

Projecting above the top of the revolving head C is a stop-block I-I, which is secured to said head by bolts, and said block is so arranged that when the head is raised and is revolved it strikes the stop-surface ct on the stop-collar A2, as shown in Figs. l and la. `This stop-collar is arranged to limit the upward and rotary movement of the crane-arms at any point desired. The lowering movement of the revolving head is regulated by the exhaust of the motive fluid from the cylinders B, controlled by the operating-levers B5 B1.

To obtain a ilask preparatory to placing it on a molding=machine, the operator swings the crane-head on its axis in proper position to receive the flask and projects the crane carriage and arms by the admission of the motive tluid to the cylinders E until the hooks on the crane-arms are beneath the trunnions on the flask. `By a movement of one of the operating-levers B5 Bg the pressure-fluid is admitted to the twin cylinders until the cranear ms lift the ilask to the desired height, the upward movement of the parts being checked by the stop-collar A2 on the standard. The carriage is then moved inwardly and swung on its axis to swing the flask toward the molding-machine or the like until it is stopped by engagement of the stops Il and a. The carriage is then run forward and pressure in the cylinders B released and the flask lowered upon the part which supports it. Thereafter the crane-head is further lowered to release the hooks d from the flask, and the carriage is retracted and the cranearms swung outwardly for another flask.

'It is obvious that a crane embodying the general features of construction herein illustrated may be employed for other uses than in connection with sand-molding machines;

`and it is furthermore obvious that manyof the structural details may be widely varied without departing from the spirit of the invention. We do not, therefore, wish to be limited to the application of the crane herein shown nor to such structural details except as hereinafter made the subject of specific We claim as our inventiont l. A crane comprising a stationary standard, a movable head having vertically-sliding, rotative movement thereon, a horizonltally-movable carriage on said head, provided with a projecting crane-arm, and means for imparting vertical movement to said head.

2. A crane comprising a stationary standard, a head having vertically-sliding and rotative movement thereon, a horizontally-'movable carriage supported on said head and provided with a projecting crane-arm, and means on said head for imparting horizontal movement to said carriage.

zontally-movable carriage supported on said 3. A crane comprising a stationary standard, a movable head having vertically-sliding and rotative movement thereon, a horihead and provided with a projecting cranearm, means for imparting vertical movement to said head and means on said head for imparting horizontal movement toV said carriage.

4. A crane comprising a stationary standard, a movable head which has vertically-'sliding and .rotative movement thereon, means for raising and lowering said head, a stop on the standard for limiting the upward movement of the head, a horizontally-movable carriage which is supported on said head and is provided with a projecting crane-arm, means `for moving said carriage horizontally and a crane-arm extending outwardly from said carriage.

f 5. A crane comprising a standard, a head on said standard having verticaland rotative movement'thereon, means for raising and lowering said head, a stop on said standard for limiting both theupwardfand rotary movement of said head, a carriage supported on said head and provided with an outwardlyextending crane-arm and means for impart-- ing horizontal movementv to said carriage.

A crane comprising a standard, two upright cylinders provided with inlet and exv haustpassages, pistons in said cylinders, pis-L `ton-rods connected Vwith said pistons, a crosshead which is attached to thepiston-rods and is adapted to slide vertically on said standard,

la crane-head which has both lvertically-sliding and .rotative movement in said standard and which rests on said cross-head, and ahorizontally-movable carriage mounted on lsaid crane-head and provided with acrane-arm.

` 7. A crane comprising a standard, two upright cylinders, pistons in said cylinders, pis-` vton-rods connected with said pistons, a crosshead with which said piston-rods are con- -to the carriage. t

`nected, a vertically-movable crane-h'eadisurrounding the standard and supported vonsaid cross-head, a horizontally-movable carriage provided With-a crane-arm, and rollers supported on said crane-head upon which thecarriage rests and rolls.-V l

8. A crane comprising-a ystationary standard, a'movable crane-headhaving verticallysliding and rotative movement on said standard,a horizontally-movable carriage provided with a crane-arm and having `two parallel horizontal members which extend at opposite sides of the standard, and 'upper and lower' rollers supported. on said crane-head and which engage the top and bottom surfaces of the carriage members.

9. t A crane comprising a stationary standper rollers being located at the side of the standard remote from the crane-arm.

10. A crane comprising a vertically-movable head, forwardly and rearwardly directed arms on said head, shafts carried; by said arms, rollers on said shafts, a horizontallymovable carriage, a crane-arm extending outwardly'from said carriage, said rollers bear-` ing against upwardly-facing surfaces at one end of the carriage and downwardly-facing surfaces at the other end of the carriage, and other rollers mounted on said head and engagingdownwardly-facing surfaces on said carriage.

11. A crane comprising a vertically-movable head, forwardly and rearwardly directed arms on said head, shafts carried by said arms, rollers on said shafts, a horizontally- `movable carriage, a crane-arm extending outwardly from said'carriage, said rollersbearing against upwardly-facing surfaces at one end of the carriage and downwardly-facing surfaces at the other end ofthe carriage, other rollers mounted on said headfand engaging downwardly-facing surfaces on said carriage, and means on the head for imparting movement 12. A crane comprising la standard, a vertically-movable head thereon, a horizontallymovable carriage supported on saidV head through the medium of rollers which are supported on said head, a crane-arm extending outwardly from said carriage and a yielding stop on the crane-head for limiting the retractive movement of said carriage.

13. `A crane comprising a standard, a'vertically-movable'crane-head consisting of a central hub and radial arms, rollers mounted- YIooA on the arms of the head, a horizontally-nuovence of two Witnesses, this 413th clay of Moy able carriage engaging and supported on said A. D. 1902.

rollers, :L crane-arm on said carriage, means for raising and lowering the head and means AIEXNIRIIIRSON' 5 for moving said carriage horizontally 0n said J rollers. Witnesses:

In testimony that We claim the foregoing as TAYLOR E. BROWN,

our invention we aix our signatures, in presl GERTRUDE BRYCE. 

